PPT-Lecture 6: Attenuation and Transmission of Photons

Unit I Physics of Nuclear Medicine Lecture 6 Objectives Adapted from your Textbook Write the general form of the attenuation equation for gamma photons Calculate the reduction of gamma radiation using the general attenuation equation. Balanced and unbalanced transmission line Transit time effect on a transmission line at high frequencies Dominance of the reactive component over resistive component Concept of distributed elements and conditions under which the lumped element circu 441. TA:. Fang WANG. Transmission Media. Part of the slides are from . Sudhanshu. Kumar etc at slideshare.net. Characteristics. A good transmission medium should provide communication with good quality at long distance.. (Quantum Cryptography). The BIG Idea. Basic idea of cryptography – To keep information secure from prying eyes. . Current encryption is mathematically based. Basically there are several possible types of keys and if the sender and end user both know the key, they can exchange information securely. . A Low-Cost Precursor for Laser Space Solar Power. Paul Jaffe, U.S. Naval Research Laboratory. Tanwin Chang, Deep Phase . Labs. Bert Murray, Lighthouse Dev. Robert Winsor, . Lighthouse Dev. This work . Muhammad Waseem Iqbal. Lecture # . 09. Spring. -2016. Acknowledgments. These Lecture slides contain material from . Behrouz . A. . Forouzan. , Data Communications and Networks, 4th . Edition. n. . and . with matter. Interaction of x-ray photons with matter. . When a beam of x-ray photons passes through matter, its intensity (energy . –. or number of x-ray photons - flowing per second) is reduced: . Transmission Media Networks and Communication Department 1 Overview T ransmission medium: is the physical path between transmitter and receiver. T ransmission media can be classified as : 1. guided Lecture 1 PRACTICE TEST Copyright ©The McGraw-Hill Companies, Inc. Permission required for reproduction or display. MULTIPLE CHOICE MULTIPLE CHOICE MULTIPLE CHOICE MULTIPLE CHOICE MULTIPLE CHOICE Mark C. Green. Judith C. Chow. Xiaoliang Wang. John G. Watson. Desert Research Institute, Reno, NV. Antony Chen. University of Nevada, Las Vegas. Presented at IMPROVE annual meeting. Petaluma, CA. October 22, 2019. Jason Bini. 1,2. , Jesus Mateo. 1,3. , Josef Machac. 4. , . Jagat. Narula. 5. , . Valentin. Fuster. 3,5. , . Zahi. Fayad. 1,5,6. , David Izquierdo-Garcia. 1. 1 Translational and Molecular Imaging Institute, Mount Sinai School of Medicine, New York, NY, USA. October 1, 2014. Dmitriy Yavid, Broad Shoulder Consulting LLC. Photo detectors have become ubiquitous, amazingly good and dirt cheap. Still, there is an ever-increasing demand from all corners of science and industry. 1 Identify and describe the process of Recognize the implications of the various interaction processes in imaging, radiation shielding, and Identify and describe the process of Recognize the implicati emission and transmission tomography. J Nuci Med 1987: 28:844—851. 7. Malko JA, Van Hertuum RL, Gullberg GT, et al. SPECT liver imaging using an iterative attenuation algorithm and an external flood Properties of X rays: . Travel in straight line,. Undergo reflection: follow laws of reflection,. Undergo refraction: follow laws of refraction,. Ionize the gas/ medium through which they pass,. INTERACTIONS.